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 #include &lt;QtGui&gt;

 #include &quot;window.h&quot;

 Window::Window(QWidget *parent)
     : QWidget(parent)
 {
     QGridLayout *grid = new QGridLayout;
     grid-&gt;addWidget(createFirstExclusiveGroup(), 0, 0);
     grid-&gt;addWidget(createSecondExclusiveGroup(), 1, 0);
     grid-&gt;addWidget(createNonExclusiveGroup(), 0, 1);
     grid-&gt;addWidget(createPushButtonGroup(), 1, 1);
     setLayout(grid);

     setWindowTitle(tr(&quot;Group Boxes&quot;));
     resize(480, 320);
 }

 QGroupBox *Window::createFirstExclusiveGroup()
 {
     QGroupBox *groupBox = new QGroupBox(tr(&quot;Exclusive Radio Buttons&quot;));

     QRadioButton *radio1 = new QRadioButton(tr(&quot;&amp;Radio button 1&quot;));
     QRadioButton *radio2 = new QRadioButton(tr(&quot;R&amp;adio button 2&quot;));
     QRadioButton *radio3 = new QRadioButton(tr(&quot;Ra&amp;dio button 3&quot;));

     radio1-&gt;setChecked(true);

     QVBoxLayout *vbox = new QVBoxLayout;
     vbox-&gt;addWidget(radio1);
     vbox-&gt;addWidget(radio2);
     vbox-&gt;addWidget(radio3);
     vbox-&gt;addStretch(1);
     groupBox-&gt;setLayout(vbox);

     return groupBox;
 }

 QGroupBox *Window::createSecondExclusiveGroup()
 {
     QGroupBox *groupBox = new QGroupBox(tr(&quot;E&amp;xclusive Radio Buttons&quot;));
     groupBox-&gt;setCheckable(true);
     groupBox-&gt;setChecked(false);

     QRadioButton *radio1 = new QRadioButton(tr(&quot;Rad&amp;io button 1&quot;));
     QRadioButton *radio2 = new QRadioButton(tr(&quot;Radi&amp;o button 2&quot;));
     QRadioButton *radio3 = new QRadioButton(tr(&quot;Radio &amp;button 3&quot;));
     radio1-&gt;setChecked(true);
     QCheckBox *checkBox = new QCheckBox(tr(&quot;Ind&amp;ependent checkbox&quot;));
     checkBox-&gt;setChecked(true);

     QVBoxLayout *vbox = new QVBoxLayout;
     vbox-&gt;addWidget(radio1);
     vbox-&gt;addWidget(radio2);
     vbox-&gt;addWidget(radio3);
     vbox-&gt;addWidget(checkBox);
     vbox-&gt;addStretch(1);
     groupBox-&gt;setLayout(vbox);

     return groupBox;
 }

 QGroupBox *Window::createNonExclusiveGroup()
 {
     QGroupBox *groupBox = new QGroupBox(tr(&quot;Non-Exclusive Checkboxes&quot;));
     groupBox-&gt;setFlat(true);

     QCheckBox *checkBox1 = new QCheckBox(tr(&quot;&amp;Checkbox 1&quot;));
     QCheckBox *checkBox2 = new QCheckBox(tr(&quot;C&amp;heckbox 2&quot;));
     checkBox2-&gt;setChecked(true);
     QCheckBox *tristateBox = new QCheckBox(tr(&quot;Tri-&amp;state button&quot;));
     tristateBox-&gt;setTristate(true);
     tristateBox-&gt;setCheckState(Qt::PartiallyChecked);

     QVBoxLayout *vbox = new QVBoxLayout;
     vbox-&gt;addWidget(checkBox1);
     vbox-&gt;addWidget(checkBox2);
     vbox-&gt;addWidget(tristateBox);
     vbox-&gt;addStretch(1);
     groupBox-&gt;setLayout(vbox);

     return groupBox;
 }

 QGroupBox *Window::createPushButtonGroup()
 {
     QGroupBox *groupBox = new QGroupBox(tr(&quot;&amp;Push Buttons&quot;));
     groupBox-&gt;setCheckable(true);
     groupBox-&gt;setChecked(true);

     QPushButton *pushButton = new QPushButton(tr(&quot;&amp;Normal Button&quot;));
     QPushButton *toggleButton = new QPushButton(tr(&quot;&amp;Toggle Button&quot;));
     toggleButton-&gt;setCheckable(true);
     toggleButton-&gt;setChecked(true);
     QPushButton *flatButton = new QPushButton(tr(&quot;&amp;Flat Button&quot;));
     flatButton-&gt;setFlat(true);

     QPushButton *popupButton = new QPushButton(tr(&quot;Pop&amp;up Button&quot;));
     QMenu *menu = new QMenu(this);
     menu-&gt;addAction(tr(&quot;&amp;First Item&quot;));
     menu-&gt;addAction(tr(&quot;&amp;Second Item&quot;));
     menu-&gt;addAction(tr(&quot;&amp;Third Item&quot;));
     menu-&gt;addAction(tr(&quot;F&amp;ourth Item&quot;));
     popupButton-&gt;setMenu(menu);

     QAction *newAction = menu-&gt;addAction(tr(&quot;Submenu&quot;));
     QMenu *subMenu = new QMenu(tr(&quot;Popup Submenu&quot;));
     subMenu-&gt;addAction(tr(&quot;Item 1&quot;));
     subMenu-&gt;addAction(tr(&quot;Item 2&quot;));
     subMenu-&gt;addAction(tr(&quot;Item 3&quot;));
     newAction-&gt;setMenu(subMenu);

     QVBoxLayout *vbox = new QVBoxLayout;
     vbox-&gt;addWidget(pushButton);
     vbox-&gt;addWidget(toggleButton);
     vbox-&gt;addWidget(flatButton);
     vbox-&gt;addWidget(popupButton);
     vbox-&gt;addStretch(1);
     groupBox-&gt;setLayout(vbox);

     return groupBox;
 }</pre>
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